hermes-agent/tests/cli/test_ctrl_enter_newline.py

83 lines
3.1 KiB
Python

"""Regression tests for issue #22379 — Ctrl+Enter newline over SSH/WSL.
prompt_toolkit treats c-j (LF) as Enter on POSIX so thin PTYs (docker exec,
some BSD ssh) that send LF for plain Enter still work. But Windows Terminal
(native, WSL, and SSH-forwarded sessions) sends Ctrl+Enter as bare LF — same
byte. Without environment-aware gating, binding c-j to submit means
Ctrl+Enter submits instead of inserting a newline.
These tests pin the gating predicate and the resulting binding behavior.
``_preserve_ctrl_enter_newline()`` short-circuits to True on native Windows
before it ever looks at the environment, so the env-driven cases below are
POSIX assertions and run on the Linux job. The native-Windows short-circuit
is marked ``windows_only`` and asserted on the real host — patching
``sys.platform`` to ``"win32"`` here would only re-assert the literal in the
``if``, on an interpreter where none of the Windows terminal behaviour it
exists for is present.
"""
from __future__ import annotations
import os
from unittest.mock import patch
import pytest
@pytest.mark.windows_only
def test_native_windows_preserves_newline():
import cli as cli_mod
assert cli_mod._preserve_ctrl_enter_newline() is True
def test_ssh_tty_alone_preserves_newline():
import cli as cli_mod
# Strip out anything that might leak truth
with patch.dict(os.environ, {"SSH_TTY": "/dev/pts/0"}, clear=True):
assert cli_mod._preserve_ctrl_enter_newline() is True
def test_windows_terminal_session_preserves_newline():
import cli as cli_mod
with patch.dict(os.environ, {"WT_SESSION": "abc-def"}, clear=True):
assert cli_mod._preserve_ctrl_enter_newline() is True
def test_ghostty_tmux_session_preserves_ctrl_j_newline():
"""Ghostty-inherited env survives tmux even when TERM_PROGRAM becomes tmux."""
import cli as cli_mod
with patch.dict(
os.environ,
{"TERM": "tmux-256color", "TERM_PROGRAM": "tmux", "GHOSTTY_RESOURCES_DIR": "/usr/share/ghostty"},
clear=True,
):
assert cli_mod._preserve_ctrl_enter_newline() is True
@pytest.mark.linux_only
def test_proc_version_microsoft_marker_preserves_newline():
"""WSL detection via /proc when env vars are scrubbed (sudo etc.).
``linux_only``: the fallback reads ``/proc/version`` — a Linux-only
interface, and the WSL kernels it sniffs for are Linux kernels.
"""
import cli as cli_mod
from io import StringIO
with patch.dict(os.environ, {}, clear=True):
real_open = open
def _fake_open(path, *args, **kwargs):
if "/proc/version" in str(path) or "/proc/sys/kernel/osrelease" in str(path):
return StringIO("Linux version 5.15.167.4-microsoft-standard-WSL2")
return real_open(path, *args, **kwargs)
with patch("builtins.open", side_effect=_fake_open):
assert cli_mod._preserve_ctrl_enter_newline() is True
# ---------------------------------------------------------------------------
# install_ctrl_enter_alias() — ANSI sequence mappings for enhanced terminals
# ---------------------------------------------------------------------------